Seiko Cal. 6636 - 538

The 6636-538 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6636 caliber with 19j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-4dd3eecf6a70]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1974

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